<template>
  <div class="yy-editor">
    <!-- 图片上传组件辅助 -->
    <el-upload
      class="avatar-uploader quill-img"
      :action="uploadImgUrl"
      name="file"
      :headers="headers"
      :show-file-list="false"
      :on-success="quillImgSuccess"
      :on-error="uploadError"
      :before-upload="quillImgBefore"
      accept='.jpg,.jpeg,.png,.gif'
    ></el-upload>

    <!-- 富文本组件 -->
    <quill-editor
      class="editor"
      v-model="content"
      :ref="id"
      :options="editorOption"
      @blur="onEditorBlur($event)"
      @focus="onEditorFocus($event)"
      @change="onEditorChange($event)"
    ></quill-editor>
  </div>
</template>

<script>
  import {getToken} from '@/utils/auth'

  // 工具栏配置
  const toolbarOptions = [
    ["bold", "italic", "underline", "strike"],       // 加粗 斜体 下划线 删除线
    ["blockquote", "code-block"],                    // 引用  代码块
    [{list: "ordered"}, {list: "bullet"}],       // 有序、无序列表
    [{indent: "-1"}, {indent: "+1"}],            // 缩进
    [{size: ["small", false, "large", "huge"]}],   // 字体大小
    [{header: [1, 2, 3, 4, 5, 6, false]}],         // 标题
    [{color: []}, {background: []}],             // 字体颜色、字体背景颜色
    [{align: []}],                                 // 对齐方式
    ["clean"],                                       // 清除文本格式
    ["link", "image"/*, "video"*/]                       // 链接、图片、视频
  ];

  import {quillEditor} from "vue-quill-editor";
  import "quill/dist/quill.core.css";
  import "quill/dist/quill.snow.css";
  import "quill/dist/quill.bubble.css";

  export default {
    props: {
      /* 编辑器的内容 */
      value: {
        type: String
      },
      /* 图片大小 */
      maxSize: {
        type: Number,
        default: 4000 //kb
      },
      id:{
        type: String,
        default: 'quillEditor'
      },
      name:{
        type: String,
      }
    },
    components: {quillEditor},
    data() {
      return {
        content: this.value,
        editorOption: {
          theme: "snow", // or 'bubble'
          placeholder: "请输入内容",
          modules: {
            toolbar: {
              container: toolbarOptions,
              handlers: {
                image: function (value) {
                  if (value) {
                    // 触发input框选择图片文件
                    document.querySelector(".quill-img input").click();
                  } else {
                    this.quill.format("image", false);
                  }
                }
              }
            }
          }
        },
        uploadImgUrl: process.env.VUE_APP_BASE_API + "/common/aliyun/upload", // 上传的图片服务器地址
        headers: {
          Authorization: 'Bearer ' + getToken()
        }
      };
    },
    watch: {
      value: function () {
        this.content = this.value;
      }
    },
    methods: {
      onEditorBlur(e) {
        //失去焦点事件
        this.$emit( 'blur', this.name );
      },
      onEditorFocus() {
        //获得焦点事件
      },
      onEditorChange() {
        //内容改变事件
        this.$emit("input", {content:this.content,name:this.name});
      },

      // 富文本图片上传前
      quillImgBefore(file) {
        let fileType = file.type;
        if (fileType === 'image/jpeg' || fileType === 'image/png') {
          return true;
        } else {
          this.$message.error('请插入图片类型文件(jpg/jpeg/png)');
          return false;
        }
      },

      quillImgSuccess(res, file) {
        console.log(res);
        // res为图片服务器返回的数据
        // 获取富文本组件实例
        let quill = this.$refs.quillEditor.quill;
        // 如果上传成功
        if (res.code === 200) {
          // 获取光标所在位置
          let length = quill.getSelection().index;
          // 插入图片  res.url为服务器返回的图片地址
          quill.insertEmbed(length, "image", res.urls[0]);
          // 调整光标到最后
          quill.setSelection(length + 1);
        } else {
          this.$message.error("图片插入失败");
        }
      },
      // 富文本图片上传失败
      uploadError() {
        // loading动画消失
        this.$message.error("图片插入失败");
      }
    }
  };
</script>

<style>
  .yy-editor .ql-container {
    height: 192px;
  }

  .yy-editor .el-upload {
    display: none;
  }

  .yy-editor .ql-snow .ql-tooltip[data-mode="link"]::before {
    content: "请输入链接地址:";
  }

  .yy-editor .ql-snow .ql-tooltip.ql-editing a.ql-action::after {
    border-right: 0;
    content: "保存";
    padding-right: 0;
  }

  .yy-editor .ql-snow .ql-tooltip[data-mode="video"]::before {
    content: "请输入视频地址:";
  }

  .yy-editor .ql-snow .ql-picker.ql-size .ql-picker-label::before,
  .yy-editor .ql-snow .ql-picker.ql-size .ql-picker-item::before {
    content: "14px";
  }

  .yy-editor .ql-snow .ql-picker.ql-size .ql-picker-label[data-value="small"]::before,
  .yy-editor .ql-snow .ql-picker.ql-size .ql-picker-item[data-value="small"]::before {
    content: "10px";
  }

  .yy-editor .ql-snow .ql-picker.ql-size .ql-picker-label[data-value="large"]::before,
  .yy-editor .ql-snow .ql-picker.ql-size .ql-picker-item[data-value="large"]::before {
    content: "18px";
  }

  .yy-editor .ql-snow .ql-picker.ql-size .ql-picker-label[data-value="huge"]::before,
  .yy-editor .ql-snow .ql-picker.ql-size .ql-picker-item[data-value="huge"]::before {
    content: "32px";
  }

  .yy-editor .ql-snow .ql-picker.ql-header .ql-picker-label::before,
  .yy-editor .ql-snow .ql-picker.ql-header .ql-picker-item::before {
    content: "文本";
  }

  .yy-editor .ql-snow .ql-picker.ql-header .ql-picker-label[data-value="1"]::before,
  .yy-editor .ql-snow .ql-picker.ql-header .ql-picker-item[data-value="1"]::before {
    content: "标题1";
  }

  .yy-editor .ql-snow .ql-picker.ql-header .ql-picker-label[data-value="2"]::before,
  .yy-editor .ql-snow .ql-picker.ql-header .ql-picker-item[data-value="2"]::before {
    content: "标题2";
  }

  .yy-editor .ql-snow .ql-picker.ql-header .ql-picker-label[data-value="3"]::before,
  .yy-editor .ql-snow .ql-picker.ql-header .ql-picker-item[data-value="3"]::before {
    content: "标题3";
  }

  .yy-editor .ql-snow .ql-picker.ql-header .ql-picker-label[data-value="4"]::before,
  .yy-editor .ql-snow .ql-picker.ql-header .ql-picker-item[data-value="4"]::before {
    content: "标题4";
  }

  .yy-editor .ql-snow .ql-picker.ql-header .ql-picker-label[data-value="5"]::before,
  .yy-editor .ql-snow .ql-picker.ql-header .ql-picker-item[data-value="5"]::before {
    content: "标题5";
  }

  .yy-editor .ql-snow .ql-picker.ql-header .ql-picker-label[data-value="6"]::before,
  .yy-editor .ql-snow .ql-picker.ql-header .ql-picker-item[data-value="6"]::before {
    content: "标题6";
  }

  .yy-editor .ql-snow .ql-picker.ql-font .ql-picker-label::before,
  .yy-editor .ql-snow .ql-picker.ql-font .ql-picker-item::before {
    content: "标准字体";
  }

  .yy-editor .ql-snow .ql-picker.ql-font .ql-picker-label[data-value="serif"]::before,
  .yy-editor .ql-snow .ql-picker.ql-font .ql-picker-item[data-value="serif"]::before {
    content: "衬线字体";
  }

  .yy-editor .ql-snow .ql-picker.ql-font .ql-picker-label[data-value="monospace"]::before,
  .yy-editor .ql-snow .ql-picker.ql-font .ql-picker-item[data-value="monospace"]::before {
    content: "等宽字体";
  }
</style>
